Accession Number:

ADA270459

Title:

An Initial Validation of Envest (Trademark) (Environmental Cost Engineering System).

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Report Date:

1993-09-01

Pagination or Media Count:

138.0

Abstract:

Responsible spending of the Department of Defense DoD budget is of extreme importance in todays shrinking fiscal environment. This is especially true when cleaning up environmentally contaminated sites on DoD installations. Every dollar spent must directly support site cleanup and closure. To provide a tool for base level program managers to develop accurate estimates of remediation efforts, the Air Force fielded a system known as ENVESTTM Environmental Cost Engineering System. This thesis presents an initial, independent validation of ENVESTTM utilizing Version 1.5. The methodology included 1 establishing face validity by interviewing registered users, 2 testing remedial action technology model assumptions with a 2k factorial evaluation, and 3 comparing technology model output to output from another independently validated model. Face validity results suggest 1 ENVESTTM develops reasonably accurate remediation estimates, 2 no correlation exists between experience and model rating, and 3 mean ratings of ENVESTTM estimate accuracy are equal for each group. The 2k factorial evaluation implies the vast majority 63 out of 74 of the required input parameters for remedial action technology models are significant. Comparison between ENVESTTM and the Environmental Protection Agencys Cost of Remedial Action CORA model validated 1987-8 shows ENVESTTM cost estimates correspond favorably.... ENVESTTM, Environment, Cost, Cost model, Parametric cost model, Remediation, Model

Subject Categories:

  • Economics and Cost Analysis
  • Logistics, Military Facilities and Supplies
  • Solid Wastes and Pollution and Control
  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE